Thanks a lot @mryawn and @jan Cavan Boulas
Found it!
Hi Druppel,
I got this resolved. In the bottom left side where you put your “To” and “From” email fields, there is an attachment field. Thats where you should place your code thats generated.
Hope this helps!
Where are the files getting stored anyway?
Make sure the captcha code is inside the <p> tags.
